1:#!/bin/sh 2:echo "Example of unquoted here document, with variable and command substitution"
3: 4: cat <<EOF
5: This text will be fed to the "cat" program as
6: standard input. It will also have variable
7: and command substitutions performed.
8: I am logged in as $USER and today is `date`
9: EOF
10:echo 11:echo "Example of quoted here document, with no variable or command substitution"
12:# The terminating string must be at the start of a line. 13: cat <<"EndOfInput"
14: This text will be fed to the "cat" program as standard
15: input. Since the text string marking the end was quoted, it does not get
16: variable and command subsitutions.
17: I am logged in as $USER and today is `date`
18: EndOfInput